timcsy

import os
from glob import glob
import re
import urllib.request

paths = glob('Notes/*.md')
results = []
for path in paths:
    with open(path, 'r', encoding='UTF-8') as fin:
        data = fin.read()

timcsy

// 比較可以重複利用牛頓法的寫法（使用 function pointer）

#include <iostream>
using namespace std;

typedef double (*Equation)(double x); // 把 function pointer 命名為 Equation

double diff(Equation f, double x, double h=1e-6) {
	return (f(x + h) - f(x)) / h;
}

timcsy

#ifndef _LIST_H
#define _LIST_H

#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
#define container_of(ptr, type, member) ({          \
		    const typeof( ((type *)0)->member ) *__mptr = (ptr);    \
		    (type *)( (char *)__mptr - offsetof(type,member) );})

struct list_head {
	    struct list_head *next, *prev;